I'd also add to this that it'd be great to have the ability to export to PNG or PDF. Especially for documentation purposes — if other team members want to see how certain sections of the flow work then they can view the full details in our documentation. They don't have to go into the flow itself and spend time expanding boxes.
I was able to accomplish an "export" of sorts to PNG by using a combination of a Chrome screenshot extension (FireShot) and the F12 Developer Tools (to disable certain parts of the UI), but that's definitely a workaround.
most of the time in agile environment we get the business process to automate, and many additional actions are added to flow to accomplish the task (e.g. variable steps) exporting to Visio from Power Automate would save valuable time especially when document the more complex and multiple flow processes.
This would be HUGE. Not all employees have tenant access to Visio and this would be huge for me being able to export their flows into Visio to present to leadership.